Regression analysis is the analysis method used to measure the relationship between two or more variables. In statistics, linear regression is a linear approach to modeling the relationship between a scalar response and one or more explanatory variables. An explanatory variable is called simple linear regression. For multiple descriptive variables, the process is called multiple linear regression.
Regression analysis is performed in order to determine the relationship between two or more variables including cause-effect relationship and to make predictions or predictions about that subject by using this relationship.
When we see a relationship in a point graph, we can use a line to summarize the relationship in the data. We can also use this truth to make estimates of the data. This process is called linear regression.
Linear Regression Curve , Your should do detailed research to get more information about it.